Commit ec9e16ba authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] sys_setrlimit() cleanup

- Whitespace cleanups

- Make that expression comprehensible.

There's a potential logic change here: we do the "is it_prof_expires equal to
zero" test after converting it to seconds, rather than doing the comparison
between raw cputime_t's.

But given that it's in units of seconds anyway, that shouldn't change

Cc: Martin Schwidefsky <>
Cc: Ulrich Weigand <>
Cc: Cliff Wickman <>
Signed-off-by: default avatarAndrew Morton <>
Signed-off-by: default avatarLinus Torvalds <>
parent de62a97e
......@@ -1630,20 +1630,21 @@ asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *r
asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit __user *rlim)
struct rlimit new_rlim, *old_rlim;
unsigned long it_prof_secs;
int retval;
if (resource >= RLIM_NLIMITS)
return -EINVAL;
if(copy_from_user(&new_rlim, rlim, sizeof(*rlim)))
if (copy_from_user(&new_rlim, rlim, sizeof(*rlim)))
return -EFAULT;
if (new_rlim.rlim_cur > new_rlim.rlim_max)
return -EINVAL;
if (new_rlim.rlim_cur > new_rlim.rlim_max)
return -EINVAL;
old_rlim = current->signal->rlim + resource;
if ((new_rlim.rlim_max > old_rlim->rlim_max) &&
return -EPERM;
if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > NR_OPEN)
return -EPERM;
return -EPERM;
retval = security_task_setrlimit(resource, &new_rlim);
if (retval)
......@@ -1653,19 +1654,22 @@ asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit __user *rlim)
*old_rlim = new_rlim;
if (resource == RLIMIT_CPU && new_rlim.rlim_cur != RLIM_INFINITY &&
(cputime_eq(current->signal->it_prof_expires, cputime_zero) ||
new_rlim.rlim_cur <= cputime_to_secs(
current->signal->it_prof_expires))) {
if (resource != RLIMIT_CPU)
goto out;
if (new_rlim.rlim_cur == RLIM_INFINITY)
goto out;
it_prof_secs = cputime_to_secs(current->signal->it_prof_expires);
if (it_prof_secs == 0 || new_rlim.rlim_cur <= it_prof_secs) {
cputime_t cputime = secs_to_cputime(new_rlim.rlim_cur);
set_process_cpu_timer(current, CPUCLOCK_PROF,
&cputime, NULL);
set_process_cpu_timer(current, CPUCLOCK_PROF, &cputime, NULL);
return 0;
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